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In pictures: Baghdad blasts

Dozens of people have been killed and many more wounded in a wave of bomb attacks in Baghdad which officials said mostly happened near Shia mosques around the time of Friday prayers.

Several of the bombs exploded in the mainly Shia area of Sadr City. No group has said it carried out the attacks, but al-Qaeda and other Sunni militant groups have targeted Shia areas in the past.

Several of the bombs were planted in cars, at least two of which were left outside the offices of anti-US Shia cleric Moqtada al-Sadr, in Sadr City.

Tensions have risen since national elections as politicians struggle to forge alliances to form a new coalition government. In the past week, security forces have killed several leaders of Iraq's al-Qaeda.

Al-Qaeda-linked militants are blamed for many of the bloodiest bomb attacks in recent years.

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